Astronomers, meteorologists, and geologists often conduct descriptive investigations.
Classification of leaves
is an example of a descriptive investigation. Observing animal behavior in nature is another example. Descriptive investigations use careful observations and measurements to develop findings.
What are the steps of a descriptive investigation?
- Make an observation about a phenomenon (qualitative and/or quantitative)
- Ask a research question.
- Hypothesize a possible answer for your question.
- Create a procedure to test your hypothesis.
- Identify what you are testing.
- Identify your control group/experimental group.
What does a descriptive investigation include?
Descriptive Investigation. Descriptive Investigations involve
collecting qualitative and/or quantitative data to draw conclusions
about a natural or man-made system (e.g., rock formation, animal behavior, cloud, electrical circuit). A descriptive investigation includes a question but no hypothesis.
What is an example of a comparative investigation?
Comparative Investigation: Involve collecting data on different populations/organisms, under different conditions (ex. Times of year, locations), to make a comparison. Example –
Using a hand lens to examine the color and texture of four different rocks
.
What is an example of an experimental investigation?
Experimental investigations have a control group which does not receive any treatment. For example,
a student might conduct an investigation to answer
the question “What is the effect of light color on plant growth?” In this experiment, the variable color of light is changed by the student.
What are 3 methods of investigation?
There are three types of scientific investigations:
descriptive, comparative and experimental
.
What are 3 types of investigations?
There are three types of field investigations—
descriptive, comparative, and correlative
.
What is the goal of a descriptive investigation?
The goal of descriptive investigation is
to describe
. It should provide factual, accurate and systematic descriptions of phenomena without attempting to infer causal relationships. It does not answer questions about the how, when, or why a particular phenomenon occurred.
What is the first step in a descriptive investigation?
The tasks which form the preliminaries to a descriptive investigation are:
Making careful objective observations
. Asking the relevant scientific questions.
Why are descriptive investigations repeatable?
Descriptive investigations are
not repeatable because
they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.
What are the benefits of comparative investigation?
Explanation: Benefit of comparative investigation is that
we can get descrete information about specific breed or species
. It is important for the study of behaviour of many organisms. The working and behaviour of various natural aspects can be found.
What are the different parts of an experimental investigation?
Include the following:
research topic or question, hypothesis, experimental procedure, materials, results (with data), and conclusion
.
What are some types of investigation?
Scientists use three types of investigations to research and develop explanations for events in the nature:
descriptive investigation, comparative investigation, and experimental investigation
.
What are the six methods of investigation?
They are: methods of
contrastive analysis, operational analysis, distributional analysis, immediate constituents analysis, componential analysis, transformational analysis, method of semantic differentiation
.
What are the 7 steps in a scientific investigation?
- Make an observation.
- Ask a question.
- Form a hypothesis, or testable explanation.
- Make a prediction based on the hypothesis.
- Test the prediction.
- Iterate: use the results to make new hypotheses or predictions.
How is an experiment different from an investigation?
Investigation: a searching inquiry for gathering detailed facts. Experiment: an orderly procedure carried
out
with the goal of verifying, refuting, or establishing the validity of a hypothesis.
